The official German designation was Panzerkampfwagen VI Ausf. B and the tank also had the ordnance inventory designation SdKfz 182.  It is also known under the informal name Königstiger (German: Bengal Tiger), often literally translated as King Tiger and by the British as Royal Tiger.<br><br>
The Tiger II combined the heavy armor of the Tiger I with the sloped armor of the Panther. The design followed the same concept as the Tiger I, but was intended to be even more formidable. The Tiger II chassis supplied the basis for the Jagdtiger turretless tank destroyer.  The Tiger II weighed 68.5 (early turret) to 69.8 (production turret) tonnes, was protected by 150 to 180 mm of frontal armor, and was armed with the 88 mm KwK 43 L/71 gun.